There currently are no triggers for Dynamics 365 for Operations and I think they should be driven by Dynamics 365 for Operations Alerts.

In D3FO, Alerts are planned to be implemented (but do not yet exist). I think it makes logical sense to have Flow triggers connect to Dynamics 365 for Operations Alerts (when available). This would allow one trigger to have an incredibly robust set "virtual triggers" without designing multiple triggers in Flow.

The abilities offered with Alerts+Flow Triggers would be a major "wow" factor for customers and would let you Flow on almost anything.